Well 200 doubled or (x2)=400 if that’s what it means
Answer:
The slope of a position-time graph can be calculated as:
where
is the increment in the y-variable
is the increment in the x-variable
We can verify that the slope of this graph is actually equal to the velocity. In fact:
corresponds to the change in position, so it is the displacement, 
corresponds to the change in time 
, so the time interval
Therefore the slope of the graph is equal to
which corresponds to the definition of velocity.
Only once hope this helps
Answer:
Carbon dioxide emissions from fossil fuel burning should be minimized at all cost. This is because the gases gotten when the carbons from hydrocarbons react with air(oxygen). This gas erodes the ozone layer which makes the melting of ice caps faster due to increased amount of heat radiations on the earth. This is the only best and permanent solution to the reduction of the amount of heat rays on the earth which is a global problem.Substances which reflects back the sunrays could also be put into the sea to prevent the melting of the ice caps.
